Test 5 Flashcards
0
Q
Service conductors must have a clearance of not less than _____ from windows.
A. 3' B. 4' C. 8' D. 10'
A
A. 3’
1
Q
Where the voltage between conductors exceeds 300 volts, the minimum clearance of service-drop conductors from flat roof structures is at least:
A. 3' B. 4' C. 8' D. 10'
A
C. 8’
2
Q
An appliance on a 20-amp branch circuit may not draw more than:
A. 5 amps B. 12 amps C. 16 amps D. 20 amps
A
C. 16 amps
80% of 20 amps = 16 amps.
3
Q
What is the minimum clear working space in front of a 480-V panel opposite exposed live parts?
A. 24" B. 36" C. 42" D. 48"
A
D. 48”
The minimum clear working space for 0-150 V is 3 feet. The minimum clear working space for 151-600 V is 4 feet.
4
Q
The minimum size overhead service entrance cable permitted is:
A. No. 8 copper B. No. 6 copper C. No. 4 aluminum D. No. 2 copper-clad aluminum
A
A. No. 8 copper
